Car-ventilator.



W. T. MANNING.

OAR VBNTILATOR. APPLICATION FILED MAY-)16, 1914.

Patented Feb. 9, 1915.

tain new and useful improvements in 'WILLIAM 'l'. MANNING, OF GOVANS, MARYLAND.

CAR-VENTILATOR.

T0 all whom it may concern Be it known that ll, WILLIAM T. MA N NING, a citizen of the United States, res1ding at Govans, in the county of Baltimore and State of Maryland, have invented Ccerar- Ventilators; and I do hereby declare the f ollowing to be a full, clear, and exact `description of the invention, such as will enableothers skilled in the art to which it appertains to make and use the same.

My present invention relates to improvements in car ventilators, in which I provide a ventilator which may be turned on, or oil', or adjusted, as desired, and in which the incoming air' is strained by a double sieve arrangement in which the larger particles of dust, dirt, 0r the like, which manof the car may be caused to force inair under the pressure due to the motion of the train, and that at the rear end of the car may be caused to suck lout air, due to the suction created by the motion of the train; or when desired these conditions may be reversed.

Another special feature of the device is that the air is uniformly distributed in the car from the ventilator in a horizontal direction, and the cold incoming air finds its way downward without creating direct drafts on the passengers.

My invention will be more fully understood by reference to the accompanying drawings, in which the same parts are indicated by the same reference symbols throughout the several views.

Figure l shows a perspective view ofthe upper end of an ordinary passenger car, showing the improved ventilator irl-place; Fig. 2 is a side elevation of the ventilator, with the car roof shown in dotted lines; Fig. 3 is an inverted plan view of the ventilator, showing the pointer arm moving over the cup-shaped part of the disk; Fig. 4 shows Specification of Letters Patent.

" ratei-1aed ret. a, rais..

Application lerl May 16, 1914. Serial No. 839,0.94

a central vertical section through the ventilator; and Fig. 5 shows section along the line f of Fig. 4," and looking in the direction of the arrows.

A represents the. main` body portion 'of l the ventilator, which is attached to the roof cf the car, and which com rises the following parts,-a central cylin ricalshell a, having lateral perforations ac, and aclosed top a carrying the hollow stem E', as shown in Fig. 4.

Below the openings a0 the body portion A is in the form of a truncated cone a2 terminatingl in the hollow cylindrical shell a3; thus the body portion A is in the form of an inverted cup having a cylindrical central chamber with openings ao in the sides there of and an exteriorv head forming a second cylindrical. chamber as. Mounted in the central cylindrical chamber a of this inverted cup is a cylindrical screen B, having its ends open and provided with reinforcing rings b. The lower one of thesev rings is supported by the stop C, see Figs. 4 and 6,

which holds the inner sieve in place, as

'show in Fig. 4. A similar cylindrical sieve D fits in the larger cylindrical bore as of the body portion A,and has upper and lower reinforcing rings d, the lower one of which Y rests on the disk E which is flanged, as at e,

not only to hold the lower ringv d in place, but to serve as a receptacle for the dust and gritty matter which will collect in the bottom of the cylindrical screen D. This disk E is detachably connected to the hollow stem E which projects up ,through the perforations in the head a of the body portion A. The disk E is held against turning on the stem E in any convenient way, as by the spline e', see Fig. 4.

`Projecting down through the hollow stem E is a rod F', rigidly attached to the rotary cap F, which cap is in the form of a hollow cylinder closed at the top and open at the bottom, and yprovided with `lateral perforations ff. The rod F is squared, as at f', to receive the pointer arm F2 which, for convenience of turning, is s aced away from the disk E by the washer and is supported against falling off in any convenient way, as by the cotter pin H. This pointer also serves as a hand lever to turn the spindle F and cap F through `the desired angle, as from the open to the closed position shown sa l in Fig. 3, or from the-position shown in full lines in Fig. 5v to that shown in dotted lines in said figure. y .y

One side of the cap is. made` cylindrical "5 and concentric with the shell a, and is preferably provided with three perforations f",

whilethe cylinder a has four such perforations a", as shown in Fig. 5, and the other side of said cap is in the form of a deflecti l0 ing shield, as shownat F3 in Fig. 5, having the sharp edge f? `and the shoulders ff, as shown in said gure. n v By turning the pointer to the osition `marked Open in ig. 3, thel cap 'will be `"brought tothe full open position, "with all three perforations f. registering `with three of the four perforationsa", showp in Figs. 2, t and 5, whilefif the pointer F2 be swung to the position marked Closed in Fig. 3, then'the openings a" and f will no longer register, and the openings a? will all be Amasked or closed.A l

If it is desired tol -force in air, as when the train is going ahead, the shield F3 should beturned. tothe position o ening rear of thetrain as shown in ig. 5,1n which case the motion of the train would force the airin .through the openings and through' the screen Bl down in the screen D, and laterally through the meshes of this last screen i into the bod of the car.

hand,

of the train, to the-position shown in dotted lines in Fig. l5, and the suction caused b the motion of the train will tend to suc Vair. out through the openingsao and f9 It will be seen that if it is desired to force in air atthe front end of the car, and suck out. air at the rear end ofthe car, this might be done by turning the shield for the ventilatoratthe front end of the car to the positionshown in vfull lines in Fig. 5, and by'turning the shield vforv the ventilator' at the rear end ofthe carto the position shown in dotted lines in Fig.f5. It'will be obvious that the position of the shield ma be reversed if the train is backing, or i the car is shifted to, a train running in the opposite direction. It will also be obvious that vtheopenings for the lpassage of air in each ventilator/.may be ad]usted by turning the arm` F2 to the desired position. yA suitable stop I is provided to limit the movement of the cap to substantially 180, l the bottom face of the disk E the words Ahead, Open and close and Back ymay be shown to indicate to the operator the desired position for turning the pointer arm F2', and with itthe capv F. L "If desired, lthe screen B may be made of coarser mesh than the screen D, which latter would screen out the larger particles of dust c entering Athrough theformer. In any event,

i ,the air entering the central screen B is de- .convenient to clean out the ventilator.

to the l If, on the other it is esiredto draw'out air by suc` tion,\throw the shield F3 toward the frontf lected downward, and the solid particles will tend to drop to the bottom ofthe screen D and fall on the cup-shaped disk E where it will be collected until such time as it is In order to clean out the ventilator, it will only be necessary to withdraw the cotter pin H and take ofi' the pointer arm F2 and remove the washer G, which will enable the cupped disk E and the screen D to be removed and cleaned out. Then if it is desired to clean the upper part of the ventilator, take out the pin C and the screen B will drop down and may be removed by hand.. The screens B and D may then be conveniently cleaned and restored to place by reversing these operations.

It will be obvious that various modifications in the herein described apparatus might be made which could be used without departing from kthe spirit of my invention.

Having thus described my invention what I claim and desire to secure by Letters Patent of the United States is 1. A car ventilator comprising a body portion adapted to be attached to the top ofthe car and provided with two concentric chambers, the inner chamber bein adapted to project upward above the roof 0I the car, and provided with lateral perforations, and the outer chamber being ada ted to project downward below the roof o the car, and a removable screen mounted in each of said chambers, substantially as described.

2. A car ventilator comprising a body portion adapted to be attached to the top of the car and provided with two concentric roof of the car, and provided with lateral perforations, and the outer chamber being adaptedto project downward below thereof of thecar, and a cylindrical screen removably mounted in each of said chambers, substantially as described.

3. A car ventilator comprising a body portion adapted to be attached to the top of the car and provided with two concentric chambers, the inner chamber being adapted to project upward above the roof;l of the car, an provided with lateral perforations, and the outer chamber being adapted to project downward below the roof of the car, and a removable screen mounted in each of said chambers, with a cup-shaped disk removably mounted below and closing the end of the lower and outer screen, substantially as described.

Ll. A car ventilator comprising a body portion adapted to be attached to the top of the car and provided with two concentric cylindrical chambers, the inner chamber being adapted to project upward above the roof of the car, and provided with lateral 130 intestin@ perforations, and the outer chamber vbeing adapted to project downward `below the roof of the car, and a cylindricalscreen removably mounted in each of said chambers, with' a cup-shaped disk removably mounted below and closing the end of the lower and outer screen, substantially as described.

5. A car ventilator comprising a body portion adaptedto be attached to the top of the car and provided with two concentric chambers, the inner chamber being adapted to roject upward above the roof of the car, and) provided with lateral perforations, and the outer chamber being ada ted to vproject downward below the roof o movable screen mounted in each of; said chambers, and a rotary cap mounted over said body portion and having perforations adapted to register with those in said body portion, with means vfor turnin said cap -throughthe desired angle relative to said body portion, substantially as described.

6. A car ventilator comprising a, body portion adapted to be attached to the top of' the carand provided with two concentric cylindrical chambers, the inner chamber being adapted to projectlupward above the roof of the car, and provided with lateral perforations, and the outer chamber being adapted to project downward below the roof of the car, a cylindrical screen removably mounted in each of said chambers, and a rotary cap mounted'over said body portion and having perforations adapted to register with those in said body portion, with means for turnin said cap through the .de-

sired angle relative to said body portion,

substantially as described.

7. A car ventilator comprising a body portion adapted to be attached to the top of the car and provided with two concentric chambers, the inner chamber being adapted to project upward above the roof of the car, and provided with lateral perforations, 4and the outer chamber being ada ted to project downward below the roof o the car, a removable screen mounted in each of said chambers, with a cup-shaped disk remova` bly mounted below and closing the end of' the lower and outer screen, and a rotary cap mounted over said body portion and having perforations adapted to register with those in said body portion, with means for turn! ing said cap vthrough the desired angle relative to said body portion, substantially as described.

8. A carl ventilator comprising a body portion adapted to be attached of the car and provided with two concentric cylindrical chambers, the inner chamber being adapted to project upward above the roof of the car, and provided with lateral perforations, and the outer chamber being adapted to project downward below the roof of the car, a cylindrical screen removably the car, a vrechambers,

vto project upward above 4downward below the roof to the top' mounted in each ofsaid chambers, with a cup-shaped disk removablyV mounted below and closin the end of the lowerand outer screen, an a rotary cap'mounted over said `body portion and having `perforations adapted to register `with those in said body ortion with meansfor turnin said ca through the desired angle vrelative to. said body ortion, substantially as described.

9. car ventilator comprising` a body portion adapted to be attached to the top of theicar and provided with two concentric. chambers, the inner -chamber being adapted to project upward above the vroof of the car, and provided with lateral perforations, and

the outer chamberfbeing adapted to project being adapted to project upward above, the

roof of the car, and provided with lateral perforations, and the outer chamber being adapted to project downward below the roof of the car, a cylindrical screen removably mounted' in each of said chambers, and a rotary cap mounted above andinclosing the upper end of said body portion and provided with perforations adapted to register with the perforations in said inner cylindrical chamber, and also provided with 'a wind shield in one side thereof, with means for turning said cap relative to'eaid body portion, substantially as described.

A- car ventilator comprising a body` lportion adapted to be attached to the top of the car and provided with two concentric chambers,

the inner chamber being adapted the roof of the car, and provided with lateral erforations, and the outer chamber being a apted to project of the car, a removable screen mounted in each of said chambers, with a-cup-shaped. disk removably mounted below and closing the end of the lower and outer screen, and a rotary cap mounted above and inclosing the upper end 'of said body portion and rovided with perforations adapted to register with the perforations in said inner cylindrical chamber, and also provided with a wind shield in one side thereof, with means for turning said cap relative to said body portion, substantially as described.

12A car ventilator comprising a body portion adapted to be attached to the top of the car and provided with two concentric cylindrical chambers,` the inner chamber 5 being Vadapted to project upward above the.

roof fof the car, and provided with lateral pe'rfmations,` and the outer chamber being adapted to proj ect downward below the roof of thecar, 'a cylindrical screen removably mounted in each ofsaid chambers, with a cupshaped disk removably' mounted below and :closing the end of the lower and outer screen, and a rotary cap mounted above and inclosing the upper endrof Vsaid body por- WILLIAM T. MANNING.

Witnesses: v

ERNEST WILKINSON S. W. SCHARFE. 

